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POStored Procedure Parameter Causes Error
 

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  1. POStored Procedure Parameter Causes Error
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    <p>I created a stored procedure that takes 3 arguments. I am having an issue with the 2nd argument ([HQ-211-STOCK-DBO]). I've been trying to figure it out for quite some time. </p> <p>Here is the call to the SP:</p> <pre><code>EXEC [dbo].[spColumnsChanged] '[HQ-193-STOCK-DBO]','[HQ-211-STOCK-DBO]','arch_conv_col_diffs' </code></pre> <p>In the SP I have the following code:</p> <pre><code>CREATE PROCEDURE [dbo].[spColumnsChanged] (@sr_database nvarchar(128),@tr_database nvarchar(128),@diff_table nvarchar(128)) </code></pre> <p>...</p> <pre><code>SET @DFCursor = CURSOR FAST_FORWARD FOR SELECT o.name table_name, col.name column_name, t.name data_type, col.max_length, col.is_nullable FROM @tr_database.sys.columns col INNER JOIN @tr_database.dbo.sysobjects o on o.id = col.object_id INNER JOIN @tr_database.sys.types t ON t.user_type_id = col.user_type_id WHERE o.xtype = 'U' -- user tables ORDER BY o.name, col.column_id </code></pre> <p>When I run the SP I receive the error: "(Msg 102, Line 63) Incorrect syntax near '.'."</p> <p>Line 63 is the FROM statement that uses the 3rd argument to the SP. (@tr_database)</p> <p>The interesting thing is if I substitue the actual parameter value for the parameter like this:</p> <pre><code> SELECT o.name table_name, col.name column_name, t.name data_type, col.max_length, col.is_nullable FROM [HQ-211-STOCK-DBO].sys.columns col INNER JOIN [HQ-211-STOCK-DBO].dbo.sysobjects o on o.id = col.object_id INNER JOIN [HQ-211-STOCK-DBO].sys.types t ON t.user_type_id = col.user_type_id WHERE o.xtype = 'U' -- user tables ORDER BY o.name, col.column_id </code></pre> <p>It works fine. </p> <p>Can anyone spot the error?</p>
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    1. UShuMpty duMpty
    1. USuser2135970
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    1. This table or related slice is empty.
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      1. POStored Procedure Parameter Causes Error
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    1. COwhich line is 63
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      1. POStored Procedure Parameter Causes Error
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    2. COYou can't use parameters for database names like that: `@tr_database.sys.types`. You need to use EXEC instead and build a string from that parameter. See [this answer](http://stackoverflow.com/questions/2073544/set-database-name-dynamically-in-sql-server-stored-procedure)
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